The black iSHOXS BullBar 19/23 is designed to mount a GoPro camera to rods or handlebars on bikes or ATVs that are 0.75 to 0.90" in diameter. It features 2K inlets for a secure grip and a standard GoPro three-prong mount and thumbscrew. The BullBar can also be used to mount navigation devices and smartphones via optional accessories.